Mixing and cutting machine



Sept. 25, 1923. 1,468,967

' C. W. HOTTMANN MIXING AND CUTTING MACHINE I Filed May 31, 1925 2 Sheets-Sheet 1 L{/ if. I NTORz & Z6 g all/#56 6:

Q 7 ATTORNEYS.

Sept. 25,1923.

C. W. HOTTMANN MIXING AND CUTTING MACHINE FiledMay 51, 1923 2 Sheets-Sheet 2 6 4 .ul: 4 Z

ATTORNEYS.

Patented Sept. 25, 1923;

were stares MIXING AND CUTTING MACHINE.

Application. 'filecl May 31,

To all cell-0122.- it 172 (13 concei /t:

Be it known that 1, CHARLES WV. Horr- MANN, a citizen of the United States, residing at Philadelphia, county of Philadelphia, State of Pennsylvania, have invented a new and useful Mixing and Cutting Machine, of which the fol owing is a specification.

The object of my present invention is to devise a novel construction and arrangement of a mixing and cutting machine which can be easily cleaned and maintained in a sanitary condition, and wherein novel means are employed to effect the feed of the material in the mixing chamber, and wherein a novel construction and arrangement of cutting mechanism is employed.

It further comp-rehends novel mixing mechanism, novel cutting mechanism and novel means for feeding the material and for eifecting its discharge from the ma- 7 chine.

It further comprehends a novel construction and arrangement of'astationary container, novel means for'efiecting the feed of the material therein, a novel construction and arrangement-of a cutting chamber having a single opening communicating with the mixing chamber serving as an inlet/and out-let, a novel construction and arrangement of a casing contributing to form'the cutting chamber and havinga portion of its wall removable to, cause the material to be fed during discharge directly to a'discharge spout or outlet. Y1 I 7 It further comprehends a novel construction of'cutters and novel means for assembling them. 1 7

Other novel features of construction and advantage will hereinafter more fully appear in the detailed descriptionand the appended claims. I For the purpose of illustrating my inven tion, I have shown in the accompanying drawings a typical embodiment thereof which is at present preferred by'me, since this embodiment will be found in practice to give satisfactory and reliable results. It is, however. to be understood that the various instrm'nentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement'and organization of these instrumentalities as herein shownand described. I r i i923. Serial No. 842,660.

Figure 1 represents a top plan view of a mixing and cutting machine, embodying my invention.

Figure 2 represents a side elevation thereof. V

Figure 3 represents,- in elevation, one of the cutter discs and their knives,

Figure 4: represents, in elevation, the disc seen in Figure 3 with the knife removed.

Figure 5 represents a section on line 5-5 Similar numerals of reference indicate 'correspondng parts;

Referring to the drawings.

1 designates the. supportingframework,

the construction and arrangement of which inayva-ry widely in practice and-which for ease of assemblage is preferably made insec tions. I 1' The supporting framework 1; carries the bottom 2 of a casing 3' which may be reinforced, desired, at its upper'portion by means of a band. This casing is provided withfa mixing-chamber 5 which communirates b-ymeans of a combined inlet and discharge port 6'with the cutting chamber 7 formed within a casing 8 supported by the framework andconn'ected "with the bottom member 2 of the casing 1 in any desired manner. The cutting chamber '7 has a portion of its wall in proximity to the port 6 downwardly inclined or bevelledpas indicated at 9, and a wall 10 of the casing 8 diverges outwardly and upwardly towards the combined inlet and discharge'port 6. j

11 designates the "main driving shaft which also carriesthe cutting-mechanism,

and this shaft is suitably journalled in the supporting framework and is: provided with" pulleys 12, in order to adapt it to be con nected with-a suitable source of power.

18 designates a bearing sleeve which carries the knifetsupport and thissleeve fixed to the shaft 11. As illustrated, the sleeve is provided with a slot 14, see Figure 10,

-' sleeve at its outer end is threaded, as indicated at 17, in order to receive a nut 18 which serves to retain in assembled position the knife supports 19. Each knife support is recessed on opposite sides, as indicated at 20, and extending from the bottom wall. of each recess is a pin 21 which serves to retain in position its respective knife 22 which is apertured, as at 23, in order to receive the pin 21. Each knife 22 fits snugly in its re- (PS8 and each knife is provided with a cutting edge 24 which preferably is straight, as illustrated. Each knife support 19 is provided with an aperture 25 and with a pin 26, the arrangement of whichwill be best understood from Figures 3 and 4.

The shaft 11 has fixed thereto a pulley 27 around which passes a belt 28 which also passes around a pulley 29 carried by a shaft 30 suitably ournalled in the machine frame. The shaft 30 has fixed to it a gear 31 which meshes with a gear 32 on a vertically disposed shaft 33, the lower end of which latter is mounted in a stepped bearing 3%; The shaft is journalled near its upper end in a bearing 35 formed by a central annular portion of the casing 3 and the free end of the shaft 33 has a polygonal contour, as indicated at 36, in order to adapt it to engage a correspondingly shaped recess in the head 38 of the material. feeding mechanism. This head preferably tapers downwardly and merges into the vertically disposed members 39 which merge into the bottom members 40 which latter carry the inclined feed members or blades 41 which extend upwardly.

42 designates a material arresting member which is secured to the casing 3 by a fastening device 4:3 and this material arresting member is provided with the forwardly and downwardly inclined bars 14.

The outer wall of the casing 8 is provided with a removable closure 45 having guide members 46, as illustrated, in the form of pins and which scrve'to guide a bar 47 which is hinged, at 4c, and at its free end it is recessed as at in order to pass over the threaded rod 50 fixedly supported, anda thumb nut 51 is piivided to engage the threaded rod 50 and lock the bar 17 and thereby the closure in its closed position. The, bar 47 is fixed to the closure 45 by 11165111901? threaded bolt which is provided with a nut 53 and the inner end of said bolt preferably bears against the iuxtaposed end of the main driving shaft 11.

54 designates a 'pivotally mounted door which forms a wall of the cutting chamber and to this doorv or gate is connected one end of a link 55, the opposite end of which is connected to a link 56 pivotally supported at one end and provided with an actuating handle 57. The material from the cutting chamber when the door or gate 54 is open passes into the delivery chute or spout 58. The annular shoulder 16, see Figures 9 and 10, is provided with a laterally extending pin'59 which is adapted to engage an aper ture 25 in the juxtaposed knife support 19 so that all of the knife supports 19 will be interlocked with each other and with the sleeve 13 which is fixed to the shaft 11 in order to revolve in unison therewith. I

The operation of my novel mixing and cutting machine will now be apparent to those skilled in this art and is as follows The mixing chamber is stationary and the material to be mixed and cut is placed in the chamber 5. Assuming now that the main dr ving shaft 11 is revolving, it will be apparent that the cutting knives 22 will revolve in unison therewith. Due to the provision of the pins 26 and the apertures 25, it will be apparent that when the knife supports are assembled, as described, the different knives will have a staggered arrangement so that they will be properly spaced from each other circumferentially around the sleeve 13 on which they are carried. A belt 28 which is driven from the pulley 27 drives the pulley 29 which is fixed to the shaft 30. r

, As theshaft 30 is intergeared with the shaft 33 the latter will be revolved and thereby the material feeding mechanism. The arrangement is such that the cutting mechanism revolves at the same speed as that of the main driving shaft 11 and the .material feeding mechanism revolves at a comparatively slow speed. As the shaft 33 revolves, it carries with it the head 38. the downwardly extending members 39. the bottom seating members 40 and the inclined feeding blades 41 so that the material within the chamber will be'fed towards the combined inlet and discharge opening 6 and will pass down the inclined wall 9 into the cutting chambcr 7. The feed blades 41 pass between or-onone side of the material arresting bars 4 1 so that the material, will pass into the cutting chamber 7 and will be acted upon by the knives 22 which make what is called a shear cut. The material out then passes up the inclined wall 10 throught-he discharge portion of the opening 5 and into the chamber5 so that it is recirculated through the mixing chamber 5 and passes again to the cutting mechanism as before described.

op'erationjof the machine as well as any condiments or flavoring material.

. As soon as the material has been cutand mixed to the desired degree of fineness the Any additional material can be i placed intbe mixing chamber 5 during the lUil chamber 5 can be removed.

essee? handle 57 is actuated to open thedoor or ate and the material discharges through the delivery snout not shown.

lily present machine" 58 to a desired receptacle,

an be mai nta-i'ned in a'sanitary condition at alltimes since'by opening; the closure iaand unscrewing'the inut 18 the cutting'blades andtheir support can be removed and Wherever desired the material feeding "mechanism in" the mixing 1 The cutting mechanism, the feeding mechanism, the mix.-

ing chamber 5 and the cutting chamber '7 can then be readily cleaned and sterilized by hot water or steam; e V

Special attentlonis directed to tnefact that in myeprcsent invention the stationary nber has an its bottom which i forms iniet and utlet port and the cutting mechanism is located directly beneath such combined port and the material which is to be cut and mixed is'circulated to and from such port. The cutting mech nism is mounted on the main driving shaft so that it can be operated at a high speed mixing chi opening in:

and the material circulatin meml erscan be.

operated at a much lower speed. 7

it will now be apparent that I have devised a new and useful mixing and cutting machine which embodies the'features of ad vantage enumerated as desirable in the tatement of the invention and the above oescri etion, and while have, in the present instance, shown and described a preferred embodiment thereof which will give in prac ce satisfactory and reliable results, it is o be lClBl'SiOC-{l that this embodiment is c ptible ofmodification in various par- ;lars without d parting from the spirit or scoge of the invention or its advantages. TI I' marine thus described my sacrificing any invention,

What I claim as new and desire to secure by Letters Patent, 1s:

1. In a mixing and cutting" machine, a

. casinmhavin a mixing chamber a cuttino P3 t) 7 a chamber and a combined inlet and discharge port communicating with l chambers, means to effect the circulation of the mate ial in said mixing chambenand cutting for said cutting chamber.

2. i mixing and cutting machine, a casc iaving a mixing chamber, a cutting a her. and a combined inlet and disharge'port opening through the bottomof the mixing chamber and communicating v-xith the cutting chamber, meansto eiiect.

the circulation of the material in said mixinn: chamber, and cutting mechanism for said cutting; chamber.

a'mixing y casing; having a'mixing cham- 7 hi crevided with a cuttin chamber beneath operatively connecting sai I stationar a combined in said cutting chamber and and cutting machine, a posit-ion,

, bottom and said aperture; naterial arresting mechanism in said mixing chamber, feeding; mechanism in said mixing chamber, a maindrivin shatt .-cutters actuated thereby, and means I main driving shaft-"and, said feeding mechanism to ac iua-tethe-latter.

4. In a mixa. combined inlet- 'y casing havii and dish and cutting machine,

arse port in its bottom and hav inn a cintin chamber communicating with sai fport,"a main driving sat-a, interlock- 1n lzn iie supports carried thereby, "kIllVGS carried by supports, and material feed inn; mechanism in said mixing chamber op .ciiven by it. 7

In a. machine of the character describe t ratively'connectedwith said driving shaft 'to be 5 main. driving 1 shaft, a sleeve in unted hereon; interlocking ,lrnite sup- "ts one Of-Wl1iCl1 is interlocked with said sleeve, knives carriedby said supin position on. said sl eve, a cutting casing havinga cutting cl amber in Which said lrr're support 7 .irnives are mounted, n' ns material to said cutting feet;

' 'ch mber, and means to efiect the-discharge or e cut material from said chamber.

a d vice of the character described, a havi g a mixing chamberand a cutting chamber: communicating therewith, mea to feed the material said mixing chamber, to arrest the teed of material'in proximity to the communication u c e-1L e said cutting ting chamber ports, means to" secure said supports. 7

nected with said driving shaft to be driven 'bv it.

8.'In device of the character described, cutting chamber, a driva casing havinga 311g shaft extendi into said cutting chamber, cutting mechanism in said chamber actuated by said shatt, said casing having a;

portion ot its ivail removable, a pivoted member by means of which said, Wall is carried, means to lock said member in closed and adjustable member in said removable portion and ar against end of said 9. In a device of the character described, a casing having a cutting chamber, a driving shaft, a sleeve fixed thereto to revolve in unison therewith, knife supports on said sleeve, each kni't'e support having a recess,

a knife secured in said recess, means 00- operating with said sleev to secure said knife supports in position, and said casing having a controllable discharge outlet from said cutting chamber.

'10. In a device 01" the character described, a casing having a cutting chamber, a driving shaft, a plurality of knife supports 01)- essee? eratively connected therewith, and knives carried by said knife supports, each of said .15 

